#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
using namespace std;
const int N = 1e3 + 10;
int n, m, q;
long long int f[N][N];
int main()
{
    cin >> n >> m >> q;
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= m; j++)
        {
            long long int x = 0;
            cin >> x;
            f[i][j] = f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1] + x;
        }
    }
    while (q--)
    {
        int x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << f[x2][y2] - f[x2][y1 - 1] - f[x1 - 1][y2] + f[x1 - 1][y1 - 1] << endl;
    }
    return 0;
}